Canoga-perkins 9161 Network Interface Device Manuale Utente Scaricare il pdf (Pagina 15)

3.3.2 Link Loss Forwarding

When LLF is enabled, a fault on one side of the 9161 propagates to the other side to notify that device

and stops signal transmission (brings down the link). See Figure 3. Set the LLF propagation to User

to Extension, Extension to User, or both directions. Set this in the User Interface; see Section 4.7.

• Link Loss detected on the Extension Port Rx

• Fault propogated to User Port

• User Port-Tx stops transmitting data

• User Port-Tx LED lights Red

Extension Port to User Port

Usr

Prt

Ext

Prt

RxTx

Usr

Prt

Ext

Prt

RxTx

Fault

No data

User Port to Extension Port

Usr

Prt

Ext

Prt

Usr

Prt

Ext

Prt

RxTx

No data

Fault

• Link Loss detected on the User Port

• Fault propogated to Extension Port

• Ext Port-Tx stops transmitting data

• Ext Port-Tx LED lights Red

Figure 3. Link Loss Forwarding Propagation

9161 Network Interface Device

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Canoga-perkins 9161 Network Interface Device Manuale Utente Pagina 15